The weapons for the project skins are visible.

Just a heads up.

Top one is pretty obviously Renekton. Who else uses this weapon? http://i1221.photobucket.com/albums/dd464/tentaclelovin/WHOSE%20BLADE%20IS%20THIS_zpseadykm4b.png

Top right might be braum or Leona, but unless Braum's project skin is genderswapped, the hint (mentioning "she") is a little obvious. http://i1221.photobucket.com/albums/dd464/tentaclelovin/shield_zpswqghkra4.png

Bottom right is two pistols. Lucian. http://i1221.photobucket.com/albums/dd464/tentaclelovin/pistols_zpsezva2afd.png

Bottom left is two of Zed's handblades. http://i1221.photobucket.com/albums/dd464/tentaclelovin/zed_zpswj5uy15b.png

Top left is the only ambiguous one.

http://i1221.photobucket.com/albums/dd464/tentaclelovin/sword_zpspo5otbus.png

it could be Fiora, but the sword isn't a piercing weapon, it's built for slashing, and it also looks MUCH more like Tryndamere's weapon. The "solid smoke" mentioned in one of those nodes would be a pretty awesome visual effect if it changed his appearance while he was undying... just saying.

Though, the fact that there's only one feminine champ among the lot if that is true, leaves some merit to the idea that it might be fiora anyway.